The two New Small Wheels (NSW) for the upgrade of the Atlas Muon Spectrometer are now installed in the experiment and ready to collect data in LHC Run III, started in July 2022. The NSW is the largest phase-1 upgrade project of ATLAS. Its challenging completion and readiness for data taking is a remarkable achievement of the Collaboration. The two wheels (10 meters in diameter) replace the...
In view of the LHC Phase-2, the CMS experiment is being upgraded with three stations of triple-GEM detectors (GE1/1, GE2/1 and ME0) to maintain the excellent trigger pT resolution of its muon spectrometer in the high-luminosity LHC environment and extending its coverage to the very-forward pseudorapidity region 2.4<|η|<2.8. The challenges faced for adapting the triple-GEM technology to a...
A large Time Projection Chamber (TPC) is the main tracking and particle identification device of the ALICE experiment at the Large Hadron Collider (LHC) at CERN. In order to cope with the foreseen Pb-Pb interaction rate of 50 kHz in the Run 3 of the LHC, the MWPC-based readout chambers of the ALICE TPC were replaced by a GEM-based amplification stage. Combined with the new front-end...
